Hi For Around 6 Weeks I Have Had Diaroeha. I

Hi for around 6 weeks I have had diaroeha. I have been having the feeling of nausea on and off all through the day. I am eating although I don't feel hungry anymore. I am constantly tired. Two weeks before Xmas, I was sent to A+E by my doctor. He thought I had a clot. My legs were swoolen and red. They did the blood test and it showed I had. I had fragments for a week. Then had a scan. They Couldnt see anything. My mouth is constantly dry feeling too. I am not taking any new news. Really worried. Please help me. . Thank you.